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-   -   transmission ax15 BFH? you be the judge (http://www.jeepforum.com/forum/f12/transmission-ax15-bfh-you-judge-1429558/)

riverhippy 10-20-2012 03:53 PM

transmission ax15 BFH? you be the judge
 
I could use some input on this problem

i just put back together an ax15 trans. (not a rebuild, just tore down and reassembled...long ugly story)

fully reassembled bench test:
1st gear: frozen. no movement or turning
2nd : quiet, good rotation
N : rotates, chattering(like a loose shift fork running across gear teeth)
3rd :chattering, good rotation
4th :chattering, good rotation
5th :chattering, good rotation
R : quiet, good reverse rotation

obvi something's amiss. i know ill be pulling it apart again, does anyone have any thoughts about the possibilities of where to start lo0oking?

i hope someone sez i misaligned the shifter or something

pete1991YJ 10-20-2012 07:12 PM

That sounds like a question for MeanMax... pm him maybe? he knows the internals better than anyone

Mean Max 10-21-2012 08:18 AM

I suspect an issue with the 1-2 shift hub. While engaged in 2nd gear all is fine, but any other forward gear has a conflict. It's worth noting that reverse uses the 1-2 shift collar for a gear, and there's no chattering in reverse either.

Bottom line, yank it apart.

Max

riverhippy 10-21-2012 10:24 AM

1 Attachment(s)
Quote:

Originally Posted by Mean Max (Post 14334280)
I suspect an issue with the 1-2 shift hub. While engaged in 2nd gear all is fine, but any other forward gear has a conflict. It's worth noting that reverse uses the 1-2 shift collar for a gear, and there's no chattering in reverse either.

Bottom line, yank it apart.

Max

thanks max. i found the chattering problem. do you think the shift fork being behind the reverse idler gear instead of in the gears groove would cause the 1st gear not to turn?

riverhippy 10-21-2012 10:47 AM

6 Attachment(s)
Quote:

Originally Posted by Mean Max (Post 14334280)
I suspect an issue with the 1-2 shift hub. While engaged in 2nd gear all is fine, but any other forward gear has a conflict. It's worth noting that reverse uses the 1-2 shift collar for a gear, and there's no chattering in reverse either.

Bottom line, yank it apart.

Max

i hope this is a better shot

Mean Max 10-21-2012 06:35 PM

Yep, that's yer problem right there! The reverse shift fork being out of it's groove is causing an issue with the 1-2 shift hub.

Max

riverhippy 10-24-2012 09:31 PM

Quote:

Originally Posted by Mean Max (Post 14336701)
Yep, that's yer problem right there! The reverse shift fork being out of it's groove is causing an issue with the 1-2 shift hub.

Max

maxi to put this behind my 2.5 i need a dakota housing, the hardware for an external slave cyl and the pilot bushing http://www.advanceadapters.com/produ...d-x-950-thick/
?


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